Re: A BIT OT : PER PACKET LOAD BALANCING AND SLOW WAN LINKS

Thanks a lot guys

CCNAx3 (Voice , Security , Wireless)

On 9/8/09, Tony Varriale <tvarriale_at_flamboyaninc.com> wrote:
> I agree with Scott. MLPPP works great in almost any situation. Just
> remember to turn off frag :)
>
> Sent from my iPhone
>
> On Sep 7, 2009, at 5:41 PM, Scott M Vermillion <scott_ccie_list_at_it-ag.com
> > wrote:
>
>> I think the point probably was meant to be that it's generally
>> speaking *not* appropriate for high-speed links carrying lots of
>> different traffic flows, where there are likely better ways to load
>> balance. That's not to say that it necessarily *is* appropriate for
>> lower-speed links, IMHO, but rather, under a limited set of
>> circumstances, it *might* be. In cases where I need to load balance
>> a single flow or a low number of flows over a couple of low-speed
>> links, I generally turn to MLPPP. That way you don't hose UDP (etc)
>> with unordered packets. Yes, you pay a small tax in overhead for
>> this benefit.
>>
>> It's been a good while now, but I occasionally deploy multicast for
>> a client to support a video feed from a satellite downlink. In one
>> case I had to backdoor this feed offsite from where the satellite
>> receiver was located to a facility where I had two T-1s available.
>> The video feed was roughly 2.5 Mbps. I initially attempted per-
>> packet load balancing (I did mention this was some years ago didn't
>> I?) but the codecs in the Set Top Boxes would not lock up on the
>> unordered packets coming their way. MLPPP solved that little
>> problem quite nicely.
>>
>> Bottom line is that you need to know your traffic flows before
>> considering such an approach and there are viable alternatives out
>> there.
>>
>> On Sep 7, 2009, at 4:18 , wdf wefwe wrote:
>>
>>> Hi all ,
>>>
>>> can anyone pls tell me why per-packet load balancing is suitable for
>>> slow wan links (from page 339 of Diane Teare CCDA book)
>>>
>>> thanks
>>>
>>> CCNAx3 (Voice , Security , Wireless)
>>>
>>>
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Received on Tue Sep 08 2009 - 07:30:03 ART